Magnetic Field Rearrangement in the Photosphere Driven by an M5.0 Solar Flare
Magnetic Field Rearrangement in the Photosphere Driven by an M5.0 Solar Flare
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M5.0 太阳耀斑驱动的光球层磁场重排
DOI：
10.3847/1538-4357/ab0a07
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发表时间：
2019-04
期刊：
影响因子：
--
通讯作者：
Bo Yang
中科院分区：
文献类型：
--
作者：
Zhe Xu;Jiayan Yang;Kaifan Ji;Yi Bi;Bo Yang
太阳黑子的结构会受到大耀斑的显著影响。在这项研究中，我们报告了在耀斑SOL 2013 -11- 03 T05：22（M5.0）期间经历两种转变的大半影区。其中一个半影段在耀斑带扫过时发生衰变并转化为小孔。与此同时，一个邻近的半影段扩张，沿着闪耀的磁极性反转线渗透到颗粒区域。极紫外和X射线观测表明，半影增强区靠近耀斑中心，而半影衰变区位于相对外侧。通过对磁运动和局部磁场变化的跟踪，我们发现耀斑期间两个区域内的磁变化是完全不同的。中心半影增强区伴随着场的坍缩，而外部半影衰减区则伴随着场向上耀斑中心的抬升。特别是随着外区磁场的抬升运动，衰减半影区的磁通量减小，而形成孔隙区的磁通量随之增大。这些结果表明，耀斑期间磁场的重新排列可能是导致黑子结构变化的原因。
Sunspot structures can be significantly affected by major flares. In this study, we reported a large penumbral area experiencing two kinds of transformations during the flare SOL2013-11-03T05:22 (M5.0). One penumbral segment decayed and transformed into a small pore when swept by the flare ribbon. At the same time, an adjacent penumbral segment expanded, permeating the granular area along the flaring magnetic polarity inversion line. EUV and X-ray observations indicated that the penumbral enhancement area was close to the flare center, while the penumbral decay area was on the relatively outer side. By tracking the magnetic motions and local magnetic field changes, we found that the magnetic transformations within two regions were totally different during the flare. The central penumbral enhancement area was accompanied by the field collapsing down, whereas the outer penumbral decay area was associated with the field lifting up toward the upper flare center. Particularly, following the uplift motion of the magnetic fields in the outer region, the magnetic flux in the decaying penumbra decreased and that in the forming pore subsequently increased. These results implied that the rearrangement of the magnetic field during the flare would be the action that resulted in the variations of sunspot structures.
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影响因子：
1
作者：
Ji, Kai-fan;Deng, Hui;Wang, Feng;Fu, Xiao-dong
通讯作者：
Fu, Xiao-dong
DOI：
10.1086/506320
发表时间：
2006-09
期刊：
The Astrophysical Journal
影响因子：
--
作者：
Haimin Wang
通讯作者：
Haimin Wang
太阳耀斑期间太阳黑子旋转逆转的观测
影响因子：
16.6
作者：
通讯作者：
--
影响因子：
2.8
作者：
W. Pesnell;B. Thompson;P. Chamberlin
通讯作者：
W. Pesnell;B. Thompson;P. Chamberlin
DOI：
10.1088/0004-637x/796/2/77
发表时间：
2014-11
期刊：
The Astrophysical Journal
影响因子：
--
作者：
H. Watanabe;R. Kitai;Ken Otsuji
通讯作者：
H. Watanabe;R. Kitai;Ken Otsuji